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Compare the2018 Infiniti Q50VS 2017 Mercedes E-Class Sedan

2018 Infiniti Q50
2017 Mercedes E-Class Sedan

Safety

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Over 200 people are killed each year when backed over by motor vehicles. The Q50 (except Pure) offers optional Back-up Collision Intervention which use rear sensors to monitor and automatically apply the brakes to prevent a rear collision. The E-Class Sedan doesn’t offer backup collision prevention brakes.

Both the Q50 and the E-Class Sedan have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, height-adjustable front shoulder belts, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, available all-wheel drive, crash mitigating brakes, lane departure warning systems, blind spot warning systems, around view monitors and rear cross-path warning.

Warranty

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The Q50 comes with a full 4-year/60,000 mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The E-Class Sedan’s 4-year/50,000 mile basic warranty expires 10,000 miles sooner.

Infiniti’s powertrain warranty covers the Q50 2 years and 20,000 miles longer than Mercedes covers the E-Class Sedan. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 6 years or 70,000 miles. Coverage on the E-Class Sedan ends after only 4 years or 50,000 miles.

The Q50’s corrosion warranty is 2 years longer than the E-Class Sedan’s (7 vs. 5 years).

Reliability

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

From surveys of all its subscribers, Consumer Reports’ April 2017 Auto Issue reports that Infiniti vehicles are more reliable than Mercedes vehicles. Consumer Reports ranks Infiniti 9 places higher in reliability than Mercedes.

Engine

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The Q50 Red Sport 400’s 3.0 turbo V6 produces 4 more horsepower (400 vs. 396) than the AMG E43 Sedan’s optional 3.0 turbo V6.

As tested in Motor Trend the Q50 Hybrid 3.5 DOHC V6 hybrid is faster than the E300 Sedan 2.0 turbo 4 cyl.:

 

Q50

E-Class Sedan

Zero to 60 MPH

4.9 sec

6.5 sec

Quarter Mile

13.6 sec

14.9 sec

Speed in 1/4 Mile

103.6 MPH

92.4 MPH

As tested in Car and Driver the Q50 Red Sport 400 3.0 turbo V6 is faster than the E300 Sedan 2.0 turbo 4 cyl.:

 

Q50

E-Class Sedan

Zero to 60 MPH

4.5 sec

6.5 sec

Zero to 100 MPH

10.5 sec

17.7 sec

5 to 60 MPH Rolling Start

5 sec

7.3 sec

Quarter Mile

13 sec

15 sec

Speed in 1/4 Mile

112 MPH

92 MPH

Top Speed

153 MPH

153 MPH

Fuel Economy and Range

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

On the EPA test cycle the Q50 Hybrid gets better fuel mileage than the E-Class Sedan:

 

 

Q50

E-Class Sedan

 

RWD

3.5 V6/7-spd. Auto

27 city/32 hwy

22 city/30 hwy

2.0 turbo 4 cyl./Auto

AWD

3.5 V6/7-spd. Auto

26 city/30 hwy

22 city/29 hwy

2.0 turbo 4 cyl./Auto

On the EPA test cycle the Q50 gets better fuel mileage than the E-Class Sedan:

 

 

Q50

E-Class Sedan

 

RWD

2.0 turbo 4 cyl./7-spd. Auto

23 city/30 hwy

22 city/30 hwy

2.0 turbo 4 cyl./Auto

AWD

3.0 twin turbo V6 (300 HP)/7-spd. Auto

19 city/27 hwy

18 city/25 hwy

3.0 turbo V6/Auto

 

3.0 twin turbo V6 (400 HP)/7-spd. Auto

19 city/26 hwy

n/a

 

Regenerative brakes improve the Q50 Hybrid’s fuel efficiency by converting inertia back into energy instead of wasting it. The E-Class Sedan doesn’t offer a regenerative braking system.

Brakes and Stopping

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

The Q50 stops shorter than the E-Class Sedan:

 

Q50

E-Class Sedan

 

70 to 0 MPH

156 feet

161 feet

Car and Driver

60 to 0 MPH

108 feet

110 feet

Motor Trend

Suspension and Handling

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

The front and rear suspension of the Q50 uses coil springs for better ride, handling and control than the E-Class Sedan, which uses torsion bars in the rear. Coil springs compress more progressively and offer more suspension travel for a smoother ride with less bottoming out.

The Q50 handles at .95 G’s, while the E300 Sedan 4MATIC pulls only .90 G’s of cornering force in a Car and Driver skidpad test.

For better maneuverability, the Q50’s turning circle is 1.4 feet tighter than the E-Class Sedan’s (36.7 feet vs. 38.1 feet). The Q50 AWD’s turning circle is .7 feet tighter than the E-Class Sedan’s (37.4 feet vs. 38.1 feet).

Chassis

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

The Q50 is 4.2 inches shorter than the E-Class Sedan, making the Q50 easier to handle, maneuver and park in tight spaces.

The Q50 Hybrid uses computer-generated active noise cancellation to help remove annoying noise and vibration from the passenger compartment, especially at low frequencies. The E-Class Sedan doesn’t offer active noise cancellation.

Passenger Space

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

The Q50 has 3.5 cubic feet more passenger volume than the E-Class Sedan (101.5 vs. 98).

The Q50 has 2.8 inches more front headroom and 2.8 inches more front legroom than the E-Class Sedan.

Ergonomics

© 1999 - 2026Advanta-STAR Automotive Research, all rights reserved. This vehicle comparison and all of the content in it are provided only by license from Advanta-STAR Automotive Research Corporation of America (Advanta-STAR). If you are not a legally licensed user of this vehicle comparison, it is against federal law to access it, copy it, forward it, or use it in any manner whatsoever. Any unauthorized use of this vehicle comparison is a violation of U.S. and international law and is punishable criminally and civilly. Removal of this watermark/notification without prior written license and approval received from Advanta-STAR is an agreement, understanding, and/or stipulation by the person(s), entities, agents, attorneys, and any other persons involved in the removal of this watermark/notification (including but not limited to Search Optics, LLC and any and all parent entities, sister entities, and subsidiary entities of Search Optics, LLC and/or any other entity, agent, attorney, and persons related in any manner to Search Optics, LLC) to: 1) an agreed upon amount of liquidated monetary damages of a minimum of $1,250,000.00 US Dollars in favor of Advanta-STAR; 2) the jurisdiction and enforcement of any legal claims associated with this matter asserted by Advanta-STAR in the United States Federal District Court in Portand, Oregon; and 3) service of process of any legal claims asserted by Advanta-STAR associated with this matter may be accomplished by First-Class Postage by the United States Postal Service or comparable service. XPYNN-M34HG 2a06:98c0:3600::103 2026/04/06

To shield the driver and front passenger’s vision over a larger portion of the windshield and side windows, the Q50 has standard extendable sun visors. The E-Class Sedan doesn’t offer extendable visors.

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